Gravity is subject to a retarding force proportinal
A particle falling under gravity is subject to a retarding force proportinal to it's velocity. Find it's position as a function of time, if it starts from rest, and show that it will eventuall reach a terminal velocity.
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A cylinder having a piston restrained by a linear spring (of spring constant 15 kN/m) contains 0.5 kg of saturated vapor water at 120°C.
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Calculate the electric field at one corner of a square 1.00 m on a side if the other three corners are occupied by 2.15 × 10-6 C charges??
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